Additive test of lubricating oil
[机] 润滑油的添加剂试验
🧩 词语组成解析
of
[əv]
prep. 关于;属于…的;由…制成;
aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];
润滑的
oil
[ɔɪl]
n. 油;石油;油画;燃油;
vt. 给…加油;
vi. 化成油;
🗣️ 情景例句
She always talks to me as though she were my sister.
她总是以我妹妹的口气跟我说话。
I remember the girl whose father owns a race horse.
我记得那个女孩的父亲有一匹赛马。
but where had it come from?
但它是从哪儿来的呢？